National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Mostly Cloudy

63°F

17°C

Humidity 68%
Wind Speed NE 17 mph
Barometer 30.09 in (1018.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Aug 5:54 am EDT
Extended Forecast for

Watertown MA

  • Today

    Today: Mostly sunny, with a high near 72. Northeast wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. East wind around 6 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75. Light and variable wind becoming east 5 to 9 mph in the morning.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. South wind 3 to 7 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 77. Light southeast wind increasing to 5 to 9 mph in the morning.

    High: 77 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Partly cloudy, with a low around 59. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 77. East wind 6 to 10 mph.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. North wind around 7 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 79. North wind around 10 mph.

    High: 79 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 72. Northeast wind 10 to 14 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 51. East wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 75. Light and variable wind becoming east 5 to 9 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 55. South wind 3 to 7 mph.
Wednesday
Partly sunny, with a high near 77. Light southeast wind increasing to 5 to 9 mph in the morning.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 59. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 77. East wind 6 to 10 mph.
Thursday Night
Partly cloudy, with a low around 58. North wind around 7 mph.
Friday
Sunny, with a high near 79. North wind around 10 mph.
Friday Night
Mostly clear, with a low around 61. Southeast wind around 6 mph becoming southwest after midnight.
Saturday
Sunny, with a high near 84. South wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 66. South wind 7 to 10 mph.
Sunday
A chance of showers. Mostly sunny, with a high near 83. South wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.37°N 71.16°W (Elev. 46 ft)
Last Update:
2:39 am EDT Aug 18, 2025
Forecast Valid:
6am EDT Aug 18, 2025-6pm EDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation